long life and high quality roller 1,material iron,nylon 2, high quality 3, diameter 40mm 4, height 50mm rollermaterial iron, nylonheight 50mmwheel diameter 40mmwe can provide many kinds of wrought iron products with high quality and reasonable price.About Qingdao Benxiang Co.,Ltd1 The company occupied 25600m2, the building area is 19082m2.We has CNC bending machine, big forged machine, cutting ...